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All results from a given calculation for CH2NCH3 (N-methylmethanimine)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-23.540559
Energy at 298.15K-23.546190
HF Energy-23.540559
Nuclear repulsion energy41.343565
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/CEP-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3327 3006 48.54      
2 A' 3242 2929 59.30      
3 A' 3199 2890 66.14      
4 A' 3154 2849 69.30      
5 A' 1889 1707 36.68      
6 A' 1642 1484 24.41      
7 A' 1611 1455 0.46      
8 A' 1580 1427 9.79      
9 A' 1358 1227 22.91      
10 A' 1219 1102 0.80      
11 A' 1045 944 18.50      
12 A' 514 464 6.37      
13 A" 3264 2948 45.37      
14 A" 1615 1459 2.99      
15 A" 1249 1129 2.83      
16 A" 1185 1071 19.93      
17 A" 744 672 0.60      
18 A" 216 195 9.08      

Unscaled Zero Point Vibrational Energy (zpe) 16026.3 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 14478.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/CEP-121G*
ABC
1.81136 0.35653 0.31510

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.072 -0.431 0.000
N2 0.000 0.550 0.000
C3 1.182 0.136 0.000
H4 -0.716 -1.463 0.000
H5 -1.695 -0.273 0.876
H6 -1.695 -0.273 -0.876
H7 1.452 -0.920 0.000
H8 1.997 0.848 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 H7 H8
C11.45412.32491.09151.08611.08612.57153.3251
N21.45411.25272.13742.07792.07792.06662.0187
C32.32491.25272.48233.03523.03521.08991.0818
H41.09152.13742.48231.77271.77272.23573.5640
H51.08612.07793.03521.77271.75103.33053.9563
H61.08612.07793.03521.77271.75103.33053.9563
H72.57152.06661.08992.23573.33053.33051.8496
H83.32512.01871.08183.56403.95633.95631.8496

picture of N-methylmethanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 118.201 N2 C1 H4 113.437
N2 C1 H5 108.910 N2 C1 H6 108.910
N2 C3 H7 123.673 N2 C3 H8 119.530
H4 C1 H5 108.989 H4 C1 H6 108.989
H5 C1 H6 107.435 H7 C3 H8 116.797
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.390      
2 N -0.112      
3 C -0.288      
4 H 0.130      
5 H 0.175      
6 H 0.175      
7 H 0.137      
8 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.544 -1.710 0.000 1.794
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.136 0.651 0.000
y 0.651 -21.126 0.000
z 0.000 0.000 -19.911
Traceless
 xyz
x 4.383 0.651 0.000
y 0.651 -3.103 0.000
z 0.000 0.000 -1.280
Polar
3z2-r2-2.560
x2-y24.991
xy0.651
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.161 -0.055 0.000
y -0.055 3.970 0.000
z 0.000 0.000 3.071


<r2> (average value of r2) Å2
<r2> 42.171
(<r2>)1/2 6.494